Reenforcement fabric



Aug. 26, 1930. A. a. JOHNSON REENFORCEMENT FABRIC Filed Feb. 14, 1928 2 Sheets-Sheet 1 6, 193C A. a. JOHNSON 1,773,897

REENFORGEMENT FABRI C Filed Feb. 14. 1928 2 Sheets-Sheet 2 Patented Au 26, 1930 UNJETED STATES PAT; yr ore-ice AUGUST G. JOHNSON, OF MONESSEN, IPENNSYLVANIA, ASSIGNOR TO PITTSBURGH.

STEEL. COMPANY, OE PITTSBURGH, PENNSYLVANIA, A. CORPORATION SYLVANIA OF PENN- REENFORCEMENT FABRIC Application filed February'll, 1928. Serial. No. 254,216.

i attaching such fabrics to joists, studdin'g, etc.

In those cases wherein it is desired to providereenforcement fabric fo'r'plaster, stucco. etc., in connection with buildings having woodenframework, such fabric is commonly attached by staples, furringnails, and the like. buildings is of metal throughout, with the result that nails and staples cannot be employed, and the attaching of reenforcing fabricto such metal structures has heretofore presented a difficult problem; the principal difiicu'lty arising through the necessity of providing means for attaching the fabric, under tension, to support the finished ceiling or Wall in a fiat plane, without sagging between the points at which the fabric is con nected to the joists or studding.

Une object of the present invention isto provide an improved form of attaching means for economically attaching reenforcing fabric to a supporting framework, wherebysai'd fabric may be rigidly anchored and so supported as to prevent sagging of the finished work. Another object of the invention is to simpli'fy' and improve generally the manner "of applyinga reenforcing fabric to a supporting framework. In the accompanying drawing there is shown, for purposes of illustration, a preferred embodiment of my invention, it being premised, however, that changes may be made in the structure shown and described, without departing from the invention as claimed;

the accompanying drawing, Figure '1 is sa -perspective View of one of the fabric attaching members; Fig. 2 is an enlarged cross section of the member of Fig. 1; Fig. 3 is a plan F View of Fig. 2; Fig. 4 is a sectional elevati'onal view showing the attaching member as applied to steel framework; Fig. 5 is a plan view of Fig. 4;; Fig. 6, snows, in elevation, a partially formed fastener for connecting fabricrattaching members to steel joists;

However, the framework of many Fig. 7 is a plan View of'a. typical fioorand' ceiling structure of steel framing, showingmy invention applied thereto and supportln'g a reenforcing fabric; Fig. 8 1s an enlarged sectional view through a finisl'ied ceiling constructed according to Fig. 7 Fig. 9 is a sectional view, in a plane transverse to that of Fig. 8; Fig;.10 shows a modified form of a'ttachin'g member, and. Fig. 11 shows myuinvention employed with a truss type of joist.

It will be understood that the inven may be employed in COnl'lG-ClllfillWlw11Ed1lfOlC- ing bars or fabrics of various form, either with or without paper backing, some of such forms of fabric being disclosed in the e dict Patents Nos. 1,502,012 of Jul-7x92 1'9; and 1 ,597,'5O7 of August 24-, 192 6;

- It will alsobe understood that the invention may be employed in connection with the formation of reenforced plaster or stucco walls. "ceilings, columns, etc.

Referring to- Figures 7', 8 and 9, I have shown a wire-reenforcing fabric 2 against which a paper backing 3 may be placed, either= loosely or attached thereto, as in the-manner shownin' one of said patents.

'The. means by which the fabric is attached to the supporting framework is best shown Jil in Fig; I and comprises a channel lilte memher 4 which may be formed in any desired length to meet various building conditions. The member 4.- is formed from thin gauge. metal and preferably bent substantially to channel shape so as to provide stiffness of body forsupportin'g'the work without flexing. The member 4; is provided with a series of prongs fi whi-ich provide the means by which the fabric issecured to said. members. These prongs preferably are formed of short lengths of wire which are arranged tooverlie the open side of the channel transversely thereof and are welded to the edges of the channel as-at' 5; The wires arebent to form apair of spaced prongs which extend downwardly' below the channel and which are adapted to be forced through the reen'for'cing fabric and are of such length as to be readily grasped by the hand and clinched In the employment of my invention in ceiling and wall structures, the members 4 are suitably arranged to extend transversely of the joists or studding, spanning several of the studding or joists with the open side of the channel against the joists or studding, and may be attached thereto in any desired manner. With steel framework, the members 4 preferably are wired to the framing, and in wood framing, the members 4 may be attached by staples which span the channel member.

In either Inanner of fastening the welded prongs 5 serve to prevent spreading of the edges of the members 4.

In steel framing, a wire connection such as the hook 6 (Fig. 6) may be employed for attaching the members 4 to the joists and studding. This hook preferably is formed of wire and is adapted to be h oked over one flange of an I-beam joist and bent around beneath the members 4. and then bent over the other flange of the I-beam. In this manner of fastening. the members 4 are tightly bound to the joist, economically, and with little manual labor.

In Fig. 11 there is shown a truss form of joist of a type commonly employed in buildings and to which my improved attaching means may readily be applied. Instead of employing hooks 6. the members 4 are wired to the joist by twisting wire around it and one or more of the joist members, as indicated at 7. However, the hook 6 may be employed, if desired, as indicated in dotted lines in this figure.

In Fig. 10, I show a modified form of the member 4. In this instance, the channel is of rectangular shape and may be tightly drawn against steel framing at the point of connection with said framing without liability to spreading. It will be apparent without specific illustration that the member 4 may take other forms or shapes. As an example, the member may be a flat strip having a beading or grooves extending longitudinally thereof to stiffen it.

Referring now to Figs. 4, 7, 8 and 9. In Fig. 4 the attaching member 4 is shown anchored to the underside of an I-beam joist 10, by the fastener 6. the members 4 extending to span several of the joists as desired, and the members 4 are arranged in parallel relation and properly spaced apart to give the desired support for the fabric and the finished ceiling. \Vith the members 4 in place as shown in Fig. 4, the fabric comprising the mesh 2 and backing 3 is pressed upwardly against the prongs 5. The prongs readily pierce the reenforcing element and protrude beneath the same and are bent over and clinched to secure the fabric to the members 4. By this arrangement, I am enabled to apply the reenforcing fabric to framework, under tension, to produce a flat surface, without the necessity of anchoring the fabric and then stretching it to secure the desired tension before permanently attaching it into position. lVith my invention, the fabric may be progressively applied and tensioned from the starting point to finish in which case all of the surface of the fabric will have like tension. Furthermore, the fabric may be more economically applied than heretofore, as it will be apparent that as the prongs indicate the points of fastening, it is only necessary to clinch or bend the prongs at these points against the fabric,the length of the prongs being such as to provide for engagement with the wires of the reenforcement of the fabric to hold the fabric in such manner as to prevent sagging thereof.

An advantage of the invention arises in the provision of a backing or support for the fabric between the joists which in itself forms the means for attaching the fabric-the structure permitting the placing of reenforcement uniformly as to tension through its surface, and in such manner as to prevent sagging thereof.

A further advantage consists in providing a rigid backing for such fabric by which the work of applying plaster or stucco may be accomplished in an advantageous manner.

I claim as my invention 1. An attaching unit for reinforcing fabric, comprising a channel member having booklike means for attaching it to metallic studding, and hook-like means rigidly secured to said members for attaching the fabric thereto.

2. An attaching device for securing reenforcing fabric to framework. which comprises a channel member adapted to be mounted with its edges in abutting engagement with the framework, and prongs welded to the edges of said member and projecting beyond the outermost face thereof.

3. An attaching device for securing reenforcing fabric to framework, which comprises a channel member adapted to be mounted with its edges in abutting engagement with the framework and of a length to span a plurality of framework members, means for maintaining said channel members against spreading, and hook members distributed throughout the length of the channel member and rigidly secured thereto, the ends of the hook members projecting beyond the outermost face thereof.

4. An attaching device for securing reenforcing fabric to framework, comprising a rigid bar adapted to be secured to and transversely span spaced members composing the framework, and prongs rigidly secured to said bar and projecting beyond the outermost surface thereof.

5. An attaching device for securing reenforcing fabric to framework, comprising a channel member adapted to be mounted with its edges in abutting engagement with the framework, and hook members bridging said edges and rigidly secured thereto and having their ends rotruding beyond the outermost surface the said member.

6. A reenforcement structure comprising in combination, a framework,'a reenforcing fabric, channel members arranged to extend transverse1y of said framework, means for se curing said channels to said framework, and hook members rigidly secured to and dism tributed throughout the length of the said channel members for clamping the fabric thereto.

7 A reenforcement structure com rising in combination, a framework, a reen orcing fabric, channel members arranged to extend transversely of said framework, means for securing said channels to said framework, and hook members rigidly secured to and distributed throughout the length of the said channel members for clamping the fabric thereto at points between the members composing the framework.

In testimony whereof I, the said AUoUsT G.

JOHNSON, have hereunto set my hand. AUGUST G. JOHNSON. 

